Improvement in mortising- and tenoning-machine



waited mes @anni dimite.

Letters .PatentL` No. 94,140, dated August 24, 1869.

IMPROVEMENT IN MQRTISING AND TnNoN'ING-MAOHINE.

The Schedule referred to n'these Letters Patent and making part of the'same.

To all whom it may concern: l

Be it known that I, WILLIAM H. SIBLE, of Harrisburg, in the county of Dauphin, and State of Penn-A sylvana,`have invented a new and valuable Improvement in Tenon-Cutting and Mortising-Machines; and I dohereby declare that the following is a full, clear, and exact description of the coustructionand operation of the same, reference being had tothe annexed drawings, making a part of ythis specilicationpandvto the letters and iigure's of reference marked thereon.

Figure 1, of .the drawings, is a plan view of my invention.

Figure 2 is a front elevation of the' same.

Figure 3 is a sectional .view thereof.

Figui-e4 is a detail.

My invention relates to machines for cutting mortises in wood; and j It consists in the construction and novel arrangementof devices by which such mortises maybe easily and rapidly formed.

W'ith this object, 1 construct a frame, as shown on the drawings, and having two upright posts or stand' ards aiiixed thereto, as represented'by the letter A of the drawings.

These standards aregroovedl on their inner sidesrespectively, to hold the gate B, and provide means for the movement of said gate up and down, Iin the manner of an ordinary saw-gate. Y

The letter C represents the bed-plate of my machine, upon which the timber to be mortised is placed.

My gate is constructed in the manner shown, and to the lower end thereof I alx-the trimmer, marked a.

The letter AD represents the chisel,-arranged upon the front side of the gate B, in lugs c, as shown.

I aiix a spring to the gate, immediately in the rear of thevhandle ci' this chisel, which serves to regulate the movements of said chisel. This spring, and its method of adjustment, is ,shown by the letter d, onv

tig. 4. v The letters h represent slotted bars, attached by suitable set-screws to the front sides of standards A, and are intended as clamps, to aid in holding the timlber upon the bed-plate. l adj ust. similar' slotted arms upon the bed-plate, outside the standards, in a similar manner, and for a similar purpose. They are -respect. ively marked i, on the drawings. l

The letter H represents a frame, arranged upon the left-hand end of the bed-plate, and designed to hold the adjustable sliding block, next mentioned.

The letterK represents a sliding block, adjustable by set-screws in the frame H, as shown.

I attach slats or guides tothe ontend of this block,

which are raised above the bed thereof, and form a channel, as shown at n.

The timber to be mortised moves longitudinally'y in this channel, and may be held firmly in any desirable position by the meansv above mentioned, in conjunction with the set-screw s, operating in and through the slat in front of the channel 91.

The letters u represent set-screws, by which the block K is adjusted. Y The letter y represents a guide. It is constructed in the form ofastaple, with its left-hand or crooked 'end adjusted in the 'end of the bed-plate C, and arranged so as to be movable out or in, at will. This guide serves as a means for moving the timber in the channel and under the chisel. v

The letters R represent braces, aliixed to the standards A and base-bar U, as shown.

' These braces are perforated with piu-holes, to admit the pin c', hereinafter mentioned, and thereby regulate the height ofthe treadle and gate, as explained heremachine is operated'. The lower end ot' this treadle is Y made adjustable by pin-holes, through which the pin c 'is passed.

The letter G represents a rod, passing from the rear side ofthe gate B, (to which it is pivoted, as shown,)

to a point near the foot of, treadle T, to which it is connected in the manner shown.

These devices combined 'form a neat and effective machine for the purpose named, `adjustable in nearly all its parts, easily constructed, land made portable at will.

What I- claim as my invention, and desire to secure by Letters Patent, is A The tenon and mortising-machine herein described, having adjustable sliding block K, with its set-screws e and s, the adjustable guide y, channel n, gate B, chisel D, clamping-bars h and c', rod G, braces R, and treadle l T, when .constructed and arranged' substantially as specified.

In testimony that I claim the above, I have hereunto subscribed my name, in the presence of two wit- 

